BALANCE BIKE 12" wheels 3-5yrs New in box, Balance bike 12" wheels 3-5yrs New in box. Unwanted Xmas gift. Strong light weight steel frame, nylon & plastic wheels. Only 2.8 kg if you end up carrying it! Balance bikes are the perfect way to teach yourchild to balance on a bike before you buy them a real bike. This is brand new unwanted Xmas gift as we already have one. Retails for £49. brand new, £39.00 , Brighton, 07883001772.